batty



' 2 Sheets-Sheet 1. J. W. BATT-Y.

Lubricating Bearing fur Millstones.

0. 202,21 Patented April 9, 1878. 1

2 sheets -sheet f2- JLW. BATTY. Lubricating Bearing for Millstones.

Pate nted April 9, 1878.

ITED STATES PATENT OFFICE.

H W. BATTY, OF BALTIMORE, MARYLAND, ASSIGNOR OF TWO-THIRDS HIS RIGHT TOG. H. DAVISON, OF SAME PLACE.

ROVEMENT IN LUBRICATING BEARINGS FOR MILLSTONES- pecification formingpart of Letters Patent No. 202,218, dated April 9, 1878; applicationfiled February 13, 1878.

hom it may concern known that I, J osnrn W. BATTY, of ore, in the countyof Baltimore, and in te of Maryland, have invented certain d usefulImprovements in Lubricating gs for Millstones; and do hereby deat thefollowing is a full, clear, and escription thereof, reference being hadccompanying drawings specification, in which re 1 is a perspective viewof my imdevice as applied to a mill, a portion pper stone being removedto show the Fig. 2 is a like view oiling devices and spindle separatedFig. 3 is a perspective View oiling devices separated from each d fromthe spindle and stones; and s a vertical central section on line as wmaking a part ction of parts.

rs of like name and kind refer to like 1 each of the figures.

e use of grinding-mills which have verindles great difficulty hasheretofore perienced in properly lubricating thewithin the stationarystone, and in ing dust from getting into the bearing. medy thesedifficulties is the main ohmy invention, which consists, princithepeculiar construction of the oilstantially-as and for the purposeheresists, further, in the peculiar constructhe grease-collar andgrease-cap, and mbination with each other, the stones, spindle,substantially as and for the hereinafter shown.

sists, further, in the means employed ing the grease-cap upon thegreasecompensating for the wear of parts, tially as and for the purposehereinsists, further, in the means employed ing oil from the oil-cup tothe spindle, tially as and for the purpose hereinown and described.

sists, finally, in the device as a whole, al parts being constructed andcomth each other and with the stones and spindle, in the manner and forthe purpose such opening is formed a circular recess, 0,

which just equals in diameter thelongest horizontal dimensions of saidopening.

Fitted within the opening 0 is a metal bushing, D, which closely fillsthe same and has its upper end flush with the bottom of the ra cess 3.At four equidistant points within the upper end of said bushing areformed recesses d, which are adjacent to a central open-' in g, d, thatis intended for the reception of a spindle, E. At one corner of eachrecess 02, upon the side next to the opening 01, is provideda notch, d,through which passes one end of a wick, F, the body of said wick beingcontained within said recess, together with oil for lubricating thespindle E, said oil being fed to said spindle by said wick.

Fitted within. the recess a of the stone 0 is a collar, G, which closelyfills thesame and has its upper surface flush with the upper surface ofsaid stone. At its center said collar is provided with an opening, g,that is somewhat larger than the spindle E, and at such point saidcollar is extended upward, and at its upper edge inclines downward andinward, as shown.

Above the collar G the' spindle E is somewhat reduced in diameter, andupon such reduced portion is closely fitted a cap, H, which is keyed toand revolves with said spindle,- and extends downward over theverticallyextended central portion g of said collar G, with its lowerend bearing upon the upper horizontal face of the latter. The interiorof said cap H is fitted closely upon the periphery of said part 9, andforms an additional bearing for the said spindle.

The upper stone or runner I is suspended from the upper end of thespindle E in the usual manner, and is caused to revolve by the latter bymeans of a driver, K, which fits over a squared portion of said spindle,and has its ends contained within recesses that are formed withinopposite sides of the central opening i of said stone.

Between the driver K and cap H is placed a spring, L, which operates tohold the latter down upon the collar G, and prevents dust and dirt frompassing between into the grease cup g, while, to prevent the upwardpressure of said spring from raising said driver, a setscrew or pin, k,passes through the latter and into or through the spindle E.

Between the lower end of the collar G and the bottom of the recess 0 isfitted a gasket, M, of suitable elastic material, after which saidcollar is secured in place by means of bolts or pins g, that passdownward through i the latter into the bushing D.

The device is now complete, and operates as follows: The bearing of thespindle, E within the bushing D is lubricated by means of oil that isfed by the wicks F, as rapidly only as is necessary, and such bearing isprevented from being fouled by dust or dirt by the packing-gasket M,while the bearing-surfaces of the collar G and cap H are lubricatedbymeans of oil or grease placed within the grease-cup g, the last-namedbearings being kept free from dust and dirt by the peculiar constructionof parts, as before named.

By this construction of lubricating devices the mill is-enabled to runmany times longer without attention than has heretofore been possible.

In consequence of the additional bearing for the upper portion of thespindle which is afl'orded by the collar and cap, the runner has greatersteadiness of motion than has heretofore been obtainable, and not onlydoes better work but will run longer without dressing than wouldotherwise be practicable.

Having thus fully set forth the nature and merits of my invention, whatI claim as new 1S 1. In combination with the stone 0 and with thespindle E, the bushing D, provided with a central opening, (I, andwithin its upper end with oil recesses d and notches d, that extendbetween the latter and said opening, and the collar G fitting aroundsaid spindle and over said bushing, substantially as and for the purposespecified.

2. In combination with the oil-recesses d of the bushing D and with thespindle E, the wicks F, extending from said recesses through the notchescl to said spindle, substantially as and for the purpose shown.

3. In combination with the stone 0 and spindle E, the collar G, providedwith the grease-cup g, and secured to said stone, and the cap H attachedto and revolving with said spindle and fitting over said grease-cup,substantially as and for the purpose set forth.

4. In combination with the stone 0 and.

spindle E, the bushing D, provided with the oil-recesses d, the wicks F,the collar G having the grease-cup g, the gasket M, and the cap H, saidparts being constructed and arranged to operate in the manner and forthe purpose substantially as shown and described. In testimony that Iclaim the foregoing I have hereunto set my hand this 6th day ofFebruary, 187 8.

JOSEPH W. BATTY. Witnesses:

F. LIEDERE, G. H. DAVISON.

